Socialist Workers Party (United States)

The Socialist Workers Party (SWP) is a socialist party in the United States. The SWP began as a group which, because it supported Leon Trotsky over Soviet leader Joseph Stalin, was expelled from the Communist Party USA. After the 1980s, the party abandoned Trotskyism and fully embraced Castroism. Since the 1930s, it has published The Militant as a weekly newspaper. It also maintains Pathfinder Press.

During the 1960s and 1970s, the SWP and its youth wing, the Young Socialist Alliance, were the third-largest socialist organizations, after the Communist Party USA and Students for a Democratic Society. The SWP suffered many splits and its membership declined. The modern SWP is smaller than its progeny, such as the Trotskyist Socialist Alternative and the Marxist-Leninist Party for Socialism and Liberation.

The SWP places a priority on "solidarity work" to aid strikes and is strongly supportive of Cuba. During the 2020s, the SWP has expressed strong support for Israel and Zionism and has denied the Gaza genocide, in contrast with many other U.S. socialist organizations that have maintained anti-Zionist positions and platforms. The party condemns the Russian invasion of Ukraine.